55047480 has 32 divisors (see below), whose sum is σ = 165142800. Its totient is φ = 14679296.

The previous prime is 55047467. The next prime is 55047491. The reversal of 55047480 is 8474055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229245 + ... + 229484.

Almost surely, 2^55047480 is an apocalyptic number.

It is an amenable number.

55047480 is an abundant number, since it is smaller than the sum of its proper divisors (110095320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55047480 is a wasteful number, since it uses less digits than its factorization.

55047480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458743 (or 458739 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 55047480 is about 7419.3988974849. The cubic root of 55047480 is about 380.4046474392.

The spelling of 55047480 in words is "fifty-five million, forty-seven thousand, four hundred eighty".